CN106889071B - A kind of dedicated complex weedicide of asparagus and its application - Google Patents
A kind of dedicated complex weedicide of asparagus and its application Download PDFInfo
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- CN106889071B CN106889071B CN201710273191.2A CN201710273191A CN106889071B CN 106889071 B CN106889071 B CN 106889071B CN 201710273191 A CN201710273191 A CN 201710273191A CN 106889071 B CN106889071 B CN 106889071B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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Abstract
The present invention provides a kind of dedicated complex weedicide of asparagus and its applications, by by the efficient haloxyfop of existing herbicide, efficient fluazifop, compounded combination constitutes the active component of the complex weedicide in specific proportions for fluroxypyr and 2-methyl-4-chlorophenoxyacetic acid sodium, so that the complex weedicide after present invention combination is compared with single dose pesticide, there is significant herbicidal effect to gramineae weed and broadleaved herb, not only drug effect is high, preventive effect is good, dosage can be reduced, reduce the pesticide residue and ecological environmental pollution in asparagus, but also have both quick-acting and long-acting characteristics, more importantly to asparagus spear safety, without phytotoxicity, therefore the artificial weeding mode that asparagus field can be replaced traditional, cost of labor is greatly decreased.
Description
Technical field
The invention belongs to weeds Techniques For Chemical Control fields, and in particular to a kind of dedicated complex weedicide of asparagus and its answer
With.
Background technique
Asparagus (English name, Asparagus officinalis Linn), also known as " reed bamboo shoot ", " Nan Disun " are lily
The tender shoots of section plant asparagus.It is bestowed by heaven it is wild at, full of nutrition, unique flavor, the features such as collecting wild and organic green in
One, enjoys the laudatory title of " kings of vegetables " in the international market.Asparagus is rich in a variety of amino acid, protein and vitamin, contains
The asparagine being above in general fruit and vegetables, especially asparagus and trace elements of selenium, molybdenum, chromium, manganese etc. are measured, has and adjusts
The effect of organism metabolism, raising body immunity, energy moistening lung, antibechic, eliminating the phlegm, to hypertension, heart disease, oedema, cystitis
Etc. there is in the prevention and treatment of diseases very strong inhibiting effect and pharmacodynamics effect.
At the beginning of the last century 90's, China becomes the first big asparagus exported country in the world, until currently, asparagus is still China
Main vegetables of earning foreign exchange.With the expansion of China's planting asparagus area, the biology and abiotic component of asparagus growth and yield are limited
Increasingly it is taken seriously.Asparagus field weed group and asparagus win honour for, strive water and strive space, and the field conditions for causing asparagus to grow are disliked
Change；The still more intermediate host of weed community or pest and disease damage, therefore the asparagus field a large amount of weeds of growth eventually cause disease, worm
Evil frequently, seriously affects the yield composition of asparagus, while will also decrease the commercial quality of asparagus.But asparagus educates in the country at present
The report of seedling field weed occurrence injury and control technology is few, and the ideal that also not yet discovery can be applied to the chemical weed control of asparagus field is removed
Careless agent, thus asparagus field mostly uses traditional weeding system of artificial uprooting weed, this undoubtedly increases the cost of labor of planting asparagus.Example
Such as, Chinese patent literature CN1259013A discloses a kind of herbicidal composition, contains aryl thiadiazoles ketone and a kind of or more
Herbicide known to kind.The activity of weeding of existing herbicide can be improved as auxiliary agent for aryl thiadiazoles ketone in the technology, make
Obtaining herbicidal composition can be used in preventing and treating monocotyledon weed and broadleaf weed, and can also reduce or even eliminate existing weeding
Phytotoxicity of the agent to the important crops such as corn, wheat, soybean, rice.Unfortunately, said herbicidal composition is only applicable in
The soil closing before asparagus spear germinates, and during asparagus harvest, if continuing to use the herbicidal composition, asparagus spear
It is highly susceptible to pollute, by phytotoxicity.Furthermore different types of pesticide has different physicochemical properties, and some drug effect release is slow
But drug effect is more lasting, and the release of some drug effects is fast but the drug effect phase is shorter, therefore quick-acting for pesticide single dose and long-acting be difficult to do
To balance.Therefore, seek one kind and have both efficient, quick-acting and long-acting Pest control efficacy, and to asparagus safety, the compounding weeding without phytotoxicity
Agent is of great significance.
Summary of the invention
Therefore, the technical problem to be solved by the present invention is to overcome existing herbicide single doses to the prevention and treatment effect of asparagus field weed
Fruit is bad, and easily makes defect of the asparagus by phytotoxicity, and then provides a kind of dedicated efficient, the quick-acting and long-acting compounding of asparagus and remove
Careless agent and its application.
For this purpose, the technical solution that the application takes are as follows:
The present invention provides a kind of complex weedicide, in parts by weight, the active component of the complex weedicide are as follows:
Efficient 35~90 parts of haloxyfop,
16~25 parts of efficient fluazifop,
7~25 parts of fluroxypyr,
28~32 parts of 2-methyl-4-chlorophenoxyacetic acid sodium；
The sum of the parts by weight of the efficient haloxyfop and the efficient fluazifop be the fluroxypyr with
1~2 times of the sum of the parts by weight of the 2-methyl-4-chlorophenoxyacetic acid sodium.
Further, the sum of the parts by weight of the efficient haloxyfop and the efficient fluazifop are the chlorine fluorine pyrroles
1.5 times of the sum of the parts by weight of fluoroacetic acid and the 2-methyl-4-chlorophenoxyacetic acid sodium.
Further,
40 parts of the efficient haloxyfop,
20 parts of the efficient fluazifop,
10 parts of the fluroxypyr,
30 parts of the 2-methyl-4-chlorophenoxyacetic acid sodium.
Further, the sum of the parts by weight of the efficient haloxyfop and the efficient fluazifop are the chlorine fluorine pyrroles
2 times of the sum of the parts by weight of fluoroacetic acid and the 2-methyl-4-chlorophenoxyacetic acid sodium.
Further,
80 parts of the efficient haloxyfop,
20 parts of the efficient fluazifop,
20 parts of the fluroxypyr,
30 parts of the 2-methyl-4-chlorophenoxyacetic acid sodium.
Further, the complex weedicide further includes solvent and cosolvent.
Further, the solvent is distilled water and acetone；The cosolvent is polysorbas20, polysorbate40, polysorbate60, tween
80, one of lower aliphatic alcohols or a variety of.
Further, with the total weight of the complex weedicide, the weight of the active component accounts for 1~70%.
Further, the weight of the active component accounts for 5~40%.
The present invention also provides the purposes that the complex weedicide is used to prevent and treat asparagus field weed.
Technical solution of the present invention has the advantages that
Complex weedicide of the present invention, it is contemplated that asparagus field weed is mainly gramineae weed and broadleaf weeds, is made
Herbicide with single effect is often ineffective, so by the efficient haloxyfop of existing herbicide, efficient fluazifop,
Fluroxypyr and 2-methyl-4-chlorophenoxyacetic acid sodium in specific proportions compounded combination to constitute complex weedicide of the present invention
Active component, compared with single dose pesticide, the complex weedicide after present invention combination has significantly gramineae weed and broadleaved herb
Herbicidal effect, not only drug effect is high, and preventive effect is good, can reduce dosage, reduce pesticide residue and ecological environmental pollution in asparagus,
But also have both quick-acting and long-acting characteristics, it is often more important that asparagus spear safety, no phytotoxicity, therefore asparagus field can be replaced to pass
The artificial weeding mode of system, is greatly decreased cost of labor.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Figure 1A~1E is sensitivity assessment effect picture of the complex weedicide to asparagus spear of the embodiment of the present invention 4；
Fig. 1 F is sensitivity assessment effect picture of the paraquat to asparagus spear；
Fig. 1 G is sensitivity assessment effect picture of the bentazone to asparagus spear；
Fig. 2A~2B be the embodiment of the present invention 4 complex weedicide after administration 20 days when to asparagus field gramineae weed and
The control efficiency figure of broadleaf weeds；
Fig. 2 C~2D be the embodiment of the present invention 4 complex weedicide after administration 40 days when to asparagus field gramineae weed and
The control efficiency figure of broadleaf weeds；
Fig. 2 E~2F is the effect picture of clear water control.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of dedicated complex weedicide of asparagus is by accounting for active component, Tween 80, distilled water and the acetone of its gross weight 70wt%
Composition, the active component are calculated as with weight g: efficient haloxyfop 35g, efficient fluazifop 25g, fluroxypyr
16g, 2-methyl-4-chlorophenoxyacetic acid sodium 28g.
Embodiment 2
A kind of dedicated complex weedicide of asparagus is by accounting for active component, propyl alcohol, distilled water and the acetone group of its gross weight 1wt%
At the active component is calculated as with weight g: efficient haloxyfop 62.5g, efficient fluazifop 16g, fluroxypyr
25g, 2-methyl-4-chlorophenoxyacetic acid sodium 30g.
Embodiment 3
A kind of dedicated complex weedicide of asparagus is by accounting for active component, ethyl alcohol, distilled water and the acetone group of its gross weight 35wt%
At the active component is calculated as with weight g: efficient haloxyfop 84g, efficient fluazifop 16g, fluroxypyr 21g,
2-methyl-4-chlorophenoxyacetic acid sodium 32g.
Embodiment 4
A kind of dedicated complex weedicide of asparagus is by accounting for active component, Tween 80 distilled water and the acetone group of its gross weight 20wt%
At the active component is calculated as with weight g: efficient haloxyfop 40g, efficient fluazifop 20g, fluroxypyr 10g,
2-methyl-4-chlorophenoxyacetic acid sodium 30g.
Embodiment 5
A kind of dedicated complex weedicide of asparagus is by accounting for active component, methanol, distilled water and the acetone group of its gross weight 5wt%
At the active component is calculated as with weight g: efficient haloxyfop 80g, efficient fluazifop 20g, fluroxypyr 20g,
2-methyl-4-chlorophenoxyacetic acid sodium 30g.
Embodiment 6
A kind of dedicated complex weedicide of asparagus is by accounting for active component, polysorbate60, distilled water and the acetone of its gross weight 40wt%
Composition, the active component are calculated as with weight g: efficient haloxyfop 35g, efficient fluazifop 16g, fluroxypyr
13g, 2-methyl-4-chlorophenoxyacetic acid sodium 29g.
Embodiment 7
A kind of dedicated complex weedicide of asparagus is by accounting for active component, Tween 80, distilled water and the acetone of its gross weight 15wt%
Composition, the active component are calculated as with weight g: efficient haloxyfop 37g, efficient fluazifop 18g, fluroxypyr
24g, 2-methyl-4-chlorophenoxyacetic acid sodium 31g.
Embodiment 8
A kind of dedicated complex weedicide of asparagus is by accounting for active component, polysorbate40, distilled water and the acetone of its gross weight 50wt%
Composition, the active component are calculated as with weight g: efficient haloxyfop 90g, efficient fluazifop 16g, fluroxypyr
21g, 2-methyl-4-chlorophenoxyacetic acid sodium 32g.
Embodiment 9
A kind of dedicated complex weedicide of asparagus is by accounting for active component, polysorbas20, distilled water and the acetone of its gross weight 60wt%
Composition, the active component are calculated as with weight g: efficient haloxyfop 46g, efficient fluazifop 23g, fluroxypyr
7g, 2-methyl-4-chlorophenoxyacetic acid sodium 32g.
Experimental example 1: complex weedicide is to asparagus spear sensitivity tests
1. reagent agent is prepared
98% efficient haloxyfop raw medicine, 95% efficient fluazifop raw medicine are by Jinan City's Saden that Chemical Co., Ltd.
Production；98% fluroxypyr raw medicine is produced by Jinan Xin Ya Chemical Co., Ltd.；95%2- methyl -4-chlorophenoxyacetic acid sodium
Raw medicine is produced by favorable to the people chemical industry responsibility Co., Ltd.
Quantitative efficient haloxyfop, efficient fluazifop, chlorine fluorine pyrrole oxygen are weighed according to the formula of the embodiment of the present invention 4
Acetic acid and 2-methyl-4-chlorophenoxyacetic acid sodium, respectively with being made into quality with the distilled water of the Tween 80 containing 1wt% again after acetone solution
Resulting four kinds of single doses are then mixed and distilled water are added to dilute 1000 times, obtain compounding by the single dose that percentage composition is 40%
Herbicide.
2. material to be tested
Asparagus children bamboo shoot, plantation innovate group in Jiangxi Academy of Agricultural Sciences asparagus base, by Jiangxi Academy of Agricultural Sciences asparagus
Team provides test site and material.
3. test method
Above-mentioned complex weedicide is sprayed on 10cm or so asparagus children bamboo shoot with sprayer, observing effect after 5 days.4 are set simultaneously
A repeating groups, the planting asparagus band that each repeating groups are 3 meters long, and 2 control groups, respectively commercial paraquat and weed eradication are set
Pine is prepared by recommendation dosage.
4. test result
It can be seen from Figure 1A~1G the complex weedicide of the embodiment of the present invention 4 to asparagus seedling without phytotoxicity, and comparison medicine
Agent paraquat and bentazone cause asparagus seedling lopsided, and it is eclipsed that paraquat even also results in asparagus seedling.
Experimental example 2: controlling experiment of the complex weedicide to asparagus field gramineae weed and broadleaf weeds
1. reagent agent is prepared
98% efficient haloxyfop raw medicine, 95% efficient fluazifop raw medicine are by Jinan City's Saden that Chemical Co., Ltd.
Production；98% fluroxypyr raw medicine is produced by Jinan Xin Ya Chemical Co., Ltd.；95%2- methyl -4-chlorophenoxyacetic acid sodium
Raw medicine is produced by favorable to the people chemical industry responsibility Co., Ltd.
Weigh a certain amount of efficient haloxyfop, efficient fluazifop, fluroxypyr and 2- methyl -4- chlorobenzene oxygen
Sodium acetate raw medicine is made into four that mass percentage is 40% with the distilled water of the Tween 80 containing 1wt% with after acetone solution respectively
Kind single dose.
By above-mentioned 40% efficient haloxyfop and 40% fluroxypyr by volume 4: 1 ratio mix and add double
It steams water and dilutes 1000 times, obtain the complex weedicide of efficient haloxyfop and fluroxypyr.
By above-mentioned 40% efficient fluazifop and 40%2- methyl -4-chlorophenoxyacetic acid sodium by volume 2: 3 ratio it is mixed
Merge plus distilled water dilutes 1000 times, obtains the complex weedicide of efficient fluazifop Yu 2-methyl-4-chlorophenoxyacetic acid sodium.
According to embodiments of the present invention 4 formula, by above-mentioned 40% efficient haloxyfop, 40% efficient fluazifop,
40% fluroxypyr and 40%2- methyl -4-chlorophenoxyacetic acid sodium by volume 4: 2: 1: 3 ratio mix and add double steamings
Water dilutes 1000 times, obtains the complex weedicide of embodiment 4.
2. material to be tested
Asparagus children bamboo shoot, plantation innovate group in Jiangxi Academy of Agricultural Sciences asparagus base, by Jiangxi Academy of Agricultural Sciences asparagus
Team provides test site and material.
3. test method
Above-mentioned herbicide single dose and three kinds of complex weedicides are sprayed on asparagus field weed with sprayer respectively, and in 20 days
Observing effect after with 40 days.This experiment also sets 3 repetitions, the planting asparagus band that each repetition is 3 meters long simultaneously, and is arranged 1
Only spray the control of clear water.
4. test result
As shown in table 1, per hectare applies effective ingredient 840g, 20 days after medicine, the complex weedicide pair of the embodiment of the present invention 4
The strain of herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass (it should be noted that total grass refers to above-mentioned four kinds of careless summations, similarly hereinafter)
Preventive effect highest is 100%.Efficient haloxyfop distinguishes the strain preventive effect of herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass
It is 81.30%, 81.82%, 0,0,41.59%.Efficient fluazifop is to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass
Strain preventive effect is respectively 78.57%, 78.28%, 0,0,40.54%.Fluroxypyr is to herba setariae viridis, herba digitariae, acalypha copperleaf, dent
Amaranth, total careless strain preventive effect are respectively 0,0,81.80%, 82.85%, 41.46%.2-methyl-4-chlorophenoxyacetic acid sodium is to dog tail
Grass, herba digitariae, acalypha copperleaf, purslane, total careless strain preventive effect are respectively 0,0,81.46%, 82.53%, 41.20%.Efficient pyrrole fluorine
The complex weedicide of the spirit of chlorine standing grain and fluroxypyr distinguishes the strain preventive effect of herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass
It is 89.39%, 90.05%, 87.49%, 88.96%, 90.05%.Efficient fluazifop and 2-methyl-4-chlorophenoxyacetic acid sodium
Complex weedicide to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass strain preventive effect be respectively 87.10%, 87.97%,
86.66%, 88.43%, 91.88%.Artificial weeding distinguishes the strain preventive effect of herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass
It is 96.13%, 96.77%, 95.81%, 95.69%, 95.60%.Investigation result after medication 20 days is shown: the present invention is implemented
The complex weedicide of example 4 to single gramineae weed (herba setariae viridis and herba digitariae), single broadleaf weeds (acalypha copperleaf and purslane) and
The strain preventive effect of total grass is significantly better than that single dose and two kinds of composite reagent combinations.
1 complex weedicide of table prevents and kill off asparagus field weed control efficiency (20 days strain preventive effects after application)
Note: data are 3 duplicate average value ± standard errors (preventive effect, %) in table.It is new using DuncanShi with column data
Multiple range method (DMRT) carries out significance difference analysis, and the lowercase person after data column indicates in 5% horizontal (P=0.05)
Upper significant difference.Different lowercases indicate the significant difference using different agents to the average preventive effect of same grass: a table in same column
Registration value highest indicates that the average preventive effect of the medicament is best；Lowercase b takes second place, and indicates that the average preventive effect of the medicament is taken second place；Word
Busbar sequence more rearward, indicates that numerical value is smaller, then it represents that the average preventive effect of the medicament is poorer.
According to table 2,40 days after medicine, the complex weedicide of the embodiment of the present invention 4 is to herba setariae viridis, herba digitariae, acalypha copperleaf, horse
Bitterroot, total careless strain preventive effect are respectively 98.52%, 99.10%, 99.01%, 98.98%, 99.00%.Efficient haloxyfop
Strain preventive effect to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass is respectively 79.57%, 80.09%, 0,0,39.91%.Essence
Fluazifop to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass strain preventive effect be respectively 76.42%, 76.32%, 0,0,
38.90%.Fluroxypyr to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass strain preventive effect be respectively 0,0,
79.81%, 80.86%, 39.43%.2-methyl-4-chlorophenoxyacetic acid sodium is to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass
Strain preventive effect be respectively 0,0,79.52%, 80.62%, 39.56%.The compounding of efficient haloxyfop and fluroxypyr
Herbicide to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass strain preventive effect be respectively 87.70%, 87.68%, 85.67%,
87.37%, 88.31%.The complex weedicide of efficient fluazifop and 2-methyl-4-chlorophenoxyacetic acid sodium to herba setariae viridis, herba digitariae,
Acalypha copperleaf, purslane, total careless strain preventive effect are respectively 85.13%, 85.87%, 84.47%, 86.27%, 89.75%.Manually
Weeding to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass strain preventive effect be respectively 94.25%, 94.77%, 93.91%,
93.59%, 93.32%.Investigation result after medication 40 days is shown: the complex weedicide of the embodiment of the present invention 4 is to single grass
Section weeds (herba setariae viridis and herba digitariae), single broadleaf weeds (acalypha copperleaf and purslane) Ji Zongcao strain preventive effect be significantly better than that single dose
And two kinds of composite reagent combinations.
2 complex weedicide of table prevents and kill off asparagus field weed control efficiency (40 days strain preventive effects after application)
Note: data are 3 duplicate average value ± standard errors (preventive effect, %) in table.It is new using DuncanShi with column data
Multiple range method (DMRT) carries out significance difference analysis, and the lowercase person after data column indicates in 5% horizontal (P=0.05)
Upper significant difference.Different lowercases indicate the significant difference using different agents to the average preventive effect of same grass: a table in same column
Registration value highest indicates that the average preventive effect of the medicament is best；Lowercase b takes second place, and indicates that the average preventive effect of the medicament is taken second place；Word
Busbar sequence more rearward, indicates that numerical value is smaller, then it represents that the average preventive effect of the medicament is poorer.
As can be seen from Table 3,40 days after medicine, the complex weedicide of the embodiment of the present invention 4 to herba setariae viridis, herba digitariae, acalypha copperleaf,
Purslane, total careless fresh weight preventive effect are respectively 98.66%, 98.53%, 99.02%, 98.85%, 98.75%.Efficient pyrrole fluorine chlorine
Standing grain spirit to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass fresh weight preventive effect be respectively 80.58%, 81.04%, 0,0,
41.01%.Efficient fluazifop to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass fresh weight preventive effect be respectively 77.46%,
77.57%, 0,0,39.91%.Fluroxypyr divides the fresh weight preventive effect of herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass
It Wei 0,0,80.71%, 81.75%, 40.35%.2-methyl-4-chlorophenoxyacetic acid sodium is to herba setariae viridis, herba digitariae, acalypha copperleaf, horse
Bitterroot, total careless fresh weight preventive effect are respectively 0,0,80.48%, 81.63%, 40.60%.Efficient haloxyfop and chlorine fluorine pyrrole oxygen
The complex weedicide of acetic acid to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass fresh weight preventive effect be respectively 88.75%,
88.82%, 86.39%, 88.15%, 89.19%.The compounding weeding of efficient fluazifop and 2-methyl-4-chlorophenoxyacetic acid sodium
Agent to herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass fresh weight preventive effect be respectively 86.14%, 86.98%, 85.53%,
87.28%, 90.76%.Artificial weeding is respectively to the fresh weight preventive effect of herba setariae viridis, herba digitariae, acalypha copperleaf, purslane, total grass
95.08%, 95.71%, 94.72%, 93.93%, 94.59%.Investigation result after medication 40 days is shown: the embodiment of the present invention
4 complex weedicide is to single gramineae weed (herba setariae viridis and herba digitariae), single broadleaf weeds (acalypha copperleaf and purslane) and total
The fresh weight preventive effect of grass is significantly better than that single dose and two kinds of composite reagent combinations.
3 complex weedicide of table prevents and kill off asparagus field weed control efficiency (40 days fresh weight preventive effects after application)
Note: data are 3 duplicate average value ± standard errors (preventive effect, %) in table.It is new using DuncanShi with column data
Multiple range method (DMRT) carries out significance difference analysis, and the lowercase person after data column indicates in 5% horizontal (P=0.05)
Upper significant difference.Different lowercases indicate the significant difference using different agents to the average preventive effect of same grass: a table in same column
Registration value highest indicates that the average preventive effect of the medicament is best；Lowercase b takes second place, and indicates that the average preventive effect of the medicament is taken second place；Word
Busbar sequence more rearward, indicates that numerical value is smaller, then it represents that the average preventive effect of the medicament is poorer.
The control efficiency that Fig. 2A~2B is 20 days after application, the control efficiency that Fig. 2 C~2D is 40 days after application, Fig. 2 E~
2F is the effect of clear water control, can intuitively be seen from above-mentioned figure, the complex composition of the embodiment of the present invention 4 is to grass family
Weeds and broadleaf weeds all have better effects, have both efficient, quick-acting and long-acting characteristics, and safe to asparagus, harmless.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of complex weedicide, which is characterized in that in parts by weight, the active component of the complex weedicide are as follows:
Efficient 35~90 parts of haloxyfop,
16~25 parts of efficient fluazifop,
7~25 parts of fluroxypyr,
28~32 parts of 2-methyl-4-chlorophenoxyacetic acid sodium；
The sum of the efficient haloxyfop and the parts by weight of the efficient fluazifop be the fluroxypyr with it is described
1~2 times of the sum of the parts by weight of 2-methyl-4-chlorophenoxyacetic acid sodium.
2. complex weedicide according to claim 1, which is characterized in that the efficient haloxyfop and the smart pyrrole fluorine
The sum of parts by weight of diclofop-methyl are the sum of parts by weight of the fluroxypyr and the 2-methyl-4-chlorophenoxyacetic acid sodium
1.5 again.
3. complex weedicide according to claim 2, which is characterized in that
40 parts of the efficient haloxyfop,
20 parts of the efficient fluazifop,
10 parts of the fluroxypyr,
30 parts of the 2-methyl-4-chlorophenoxyacetic acid sodium.
4. complex weedicide according to claim 1, which is characterized in that the efficient haloxyfop and the smart pyrrole fluorine
The sum of parts by weight of diclofop-methyl are the sum of parts by weight of the fluroxypyr and the 2-methyl-4-chlorophenoxyacetic acid sodium
2 times.
5. complex weedicide according to claim 4, which is characterized in that
80 parts of the efficient haloxyfop,
20 parts of the efficient fluazifop,
20 parts of the fluroxypyr,
30 parts of the 2-methyl-4-chlorophenoxyacetic acid sodium.
6. complex weedicide according to claim 1, which is characterized in that further include solvent and cosolvent.
7. complex weedicide according to claim 6, which is characterized in that the solvent is distilled water and acetone；It is described to help
Solvent is one of polysorbas20, polysorbate40, polysorbate60, Tween 80, lower aliphatic alcohols or a variety of.
8. complex weedicide according to claim 1, which is characterized in that with the total weight of the complex weedicide, institute
The weight for stating active component accounts for 1~70%.
9. complex weedicide according to claim 8, which is characterized in that the weight of the active component accounts for 5~40%.
10. the purposes that the described in any item complex weedicides of claim 1-9 are used to prevent and treat asparagus field weed.
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| CN106455568A (en) * | 2014-04-28 | 2017-02-22 | 美国陶氏益农公司 | Synergistic weed control from applications of haloxyfop and als inhibitor herbicides |
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